This paper reports the results obtained so far, of the research conducted to verify the
compatibility of construction and demolition waste (C&amp;D) as alternative materials for
road constructions. Annually highway and construction industries consume a huge
amount of aggregates deriving from quarries, causing considerable energy and
environmental losses. Understand how this new type of materials behave on the
physical and mechanical point of view is important to encourage and develop their
use. Pavement material behaviour is affected by many factors (i.e., load magnitude,
material properties and environmental conditions), therefore not only laboratory tests
are important but especially evaluate mechanical performances in real working
conditions (Rombi at al., 2010). For this purpose an experimental road, 30 m long and
4 m wide, was built. At three different depths a total of n°12 instruments were
installed: 3 pressure cells to measure stresses and 9 Linear Variable Differential
Transformers (LVDTs) to measure deformations. In situ tests were conducted for each
layer during construction. At the end of the construction and after a year tests were
repeated to verify the mechanical behaviour in the long term. The data were collected
from the pressure cells and LVDTs under different load and speed magnitude. At this
point of the research data are being analysed and compared, and the results reported
on this paper. In the near future all the data collected will be used to calibrate a
mathematical model in order to predict C&amp;D performances in real working
conditions. To be able to understand how pavement materials, no matter what type of
material you are using C&amp;D or natural aggregates, respond to traffic and
environmental loading is fundamental when designing pavements and evaluating their
performance.

This paper reports the results obtained so far, of the research conducted to verify the
compatibility of construction and demolition waste (C&D) as alternative materials for
road constructions. Annually highway and construction industries consume a huge
amount of aggregates deriving from quarries, causing considerable energy and
environmental losses. Understand how this new type of materials behave on the
physical and mechanical point of view is important to encourage and develop their
use. Pavement material behaviour is affected by many factors (i.e., load magnitude,
material properties and environmental conditions), therefore not only laboratory tests
are important but especially evaluate mechanical performances in real working
conditions (Rombi at al., 2010). For this purpose an experimental road, 30 m long and
4 m wide, was built. At three different depths a total of n°12 instruments were
installed: 3 pressure cells to measure stresses and 9 Linear Variable Differential
Transformers (LVDTs) to measure deformations. In situ tests were conducted for each
layer during construction. At the end of the construction and after a year tests were
repeated to verify the mechanical behaviour in the long term. The data were collected
from the pressure cells and LVDTs under different load and speed magnitude. At this
point of the research data are being analysed and compared, and the results reported
on this paper. In the near future all the data collected will be used to calibrate a
mathematical model in order to predict C&D performances in real working
conditions. To be able to understand how pavement materials, no matter what type of
material you are using C&D or natural aggregates, respond to traffic and
environmental loading is fundamental when designing pavements and evaluating their
performance.